title: Quality focus: 9th statement of work.
authors.affiliation: South Dakota Foundation for Medical Care, Sioux Falls, S.D., USA.
authors.forename: Stephan D
authors.initials: SD
authors.lastname: Schroeder
mesh_terms: D006801:Humans; D008403:Mass Screening / Q000639:trends*; D006278:Medicare; D011314:Preventive Health Services / Q000458:organization & administration* / Q000639:trends; D011785:Quality Assurance, Health Care / Q000379:methods* / Q000639:trends; D013023:South Dakota; D014481:United States